Hi,
As one who suffers SIBO regularly antibiotics are the only way to kill it off. I have success with Ciprofloxacin and Metronidazole for 2 weeks. It leaves a taste in the mouth which eventually goes a few days after the course then the SIBO is gone. From my experience playing with it only prolongs the discomfort and does not cure the problem. I can't say I like antibiotics either, I'm normally reluctant to take medication, but when backed into a corner there is not much choice.
Cheers